Automatic flushing-tank.



E. P. SIAIIY.

AUTOMATIC FLUSHING TANK.

APPLICATION FILED AuG.3I. I9Iz.

l l QUQL. Patented July 11, 1916.

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EMIL I. STARY, OF CEDAR RAPIDS, IOWA.

ATOMATC FLUSHING-TANK.

Specification of Letters Patent.

Patented July 11, 1916.

Application filed August 31, 1912. Serial No. 718,140.

To all whom t may concern.'

Be it known that l, EMIL l). STARY, a citizen of the United States, residing at Cedar Rapids, in the county of Linn and State of vIowa, have invented a new and useful .Automatic Flushing-Tank, of which the following is a specification.

This invention relates to automatic flushing tanks and is more particularly an improvement upon the structure disclosed in atent No. 969,305, issued to me on September 6, 1910.

One of the objects of the invention is to provide simple and eiicient means whereby the liquid contents of a tank or reservoir can be automatically and intermittently discharged and which is devoid of movable parts which might get out of order.

Another1 object is to provide improved means for controlling the operation of the siphon.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings: Figure 1 is a section through a tank having the present improvements combined therewith. Fig. 2 is a plan view of the structure shown in Fig. 1. Fig. 3 is a section on line A-B Fig. 1.

Referring to the figures by characters of reference 1 designates a tank or reservoir of any desired form and size and the same has a valved inlet 2, while extending from the bottom of the tank is an outlet pipe 3 or the like. 1

The structure constituting the present invention includes a container 4 which is preferably cylindrical and which is overhung by a bell 5 concentric therewith and spaced therefrom. An inner bell 6 extends downwardly into the container 4 and projecting into the inner bell to a point below the upper :edge of the container 4 is a discharge pipe 7 the lower end of which fits into the outlet opening 8 in the bottom of the container 4 and from which the pipe 3 extends. Anair pipe 9 extends downwardly along the outer face of the inner bell 6 and thence upwardly along the inner face thereof, the inner end of the pipe 9 being located in a lower plane than the outer end of the pipe, as will be clearly apparent by referring to Fig. 1. The outer end of pipe 9 is located above the plane occupied by the upper edge of the container' 4. Pipe 7, bells 5 and 6 and the container 4 are all preferably concentric.

In using the apparatus the container 4 and the air pipe 9 are filled with liquid. Liquid is then discharged into the tank or reservoir and when it reaches a predetermined depth, the pressure of the liquid becomes such as to force the confined air out of the bell 5 through the pipe 9. Thus a flow of liquid will be set up through bell 5, pipe 9 and bell 6 to the pipe 7 whereupon siphonic action will take place until the level of the water comes to a point slightly below the lower edge of the bell 5 whereupon the siphonic action is broken and the discharge of liquid ceases leaving sufiicient liquid in the container 4 and the air pipe 9 for the next operation. The level of the liquid discharged into the tank 1 from the pipe 2 again rises as before whereupon the operation described will be repeated.

By referring to Fig. 1 it will be seen that the pipe 7 is provided with an interiorly reduced portion 7a. This is advantageous for the reason that, as the liquid in the tank begins to discharge downwardly through the pipe 7 it will strike the reduced portion and rebound inwardly, thus quickly choking the outlet portion of the pipe 7 and more quickly setting up the siphonic action than would be the case should the interior of the pipe 7 be of uniform diameter throughout the length thereof.

What is claimed is The combination with a receptacle havin meansl for continuously supplying fluid thereto, of an outlet pipe extending from the bottom of the receptacle, a container resting upon the bottom of the receptacle and concentric with the outlet, a pipe within the container and extending through the bottom thereof and into the outlet, that portion of said pipe within the outlet being frustoconical to constitute fluid deecting means, outer and inner bells within the receptacle, said container being extended between the bells and the inner bell extending below the 'lesY l onter bell, anda lilshaped air eondno'tor n-I In testimony that I claim the foregoing as .tegral With the inner4 bell and extending my oWn, I have hereto affixed my signature along the inner and outer faces thereof and in the presence of tw Witnesses.

' Vunder said inner bell, both ends of said con- EMIL I). STARY.

duetor being extended above the container Y Witnesses: andthe outlet pipe, the outer end ofV the VREUBEN D. STARY, conductor being above the inner end thereof. FRANK G. STARY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

` Washington, D. C. 

